Chapter 3: Equations
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Created by:
leskokel on October 6, 2009
Classes:
Awesome People Only!!!:), Immaculate Heart Algebra Students, Immaculate Heart Pre-Algebra Students
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26 terms
Terms | Definitions |
|---|---|
 equation | a mathematical sentence that contains an equal sign |
| solution | a value that makes the equation true |
| isolate the variable | a variable is isolated when it appears on one side of an equation by itself |
| inverse operations | operations that undo each other |
| addition property of equality | add the same number to both sides of the equal sign |
| subtraction property of equality | subtract the same number from both sides of the equal sign |
| linear equation | when graphed it is a straight line; the exponent is a 1 |
| division property of equality | divide the same number from both sides of the equal sign |
| multiplication property of equality | multiply the same number from both sides of the equal sign |
| one-step equation | equation where only one property is used |
| two-step equation | solving an equation that involves two steps |
| multi-step equation | may involve distribution and combine like terms in addition to the steps take in a one-step or two-step |
| equation with variables on both sides | equation with variables on both sides; still need to isolate variable on left or right hand side |
| type of solutions for equations | one solution; many; none |
| ratio | a comparison of two numbers by division |
| rate | a ratio measured in different units |
| unit rate | a rate with a denominator of one |
| proportion | equation comparing two ratios |
| means of the proportion | the middles (b and c) |
| extremes | the a and d of the proportion |
| cross products of a proportion | can use to prove a proportion true; can be used to find a missing value of a proportion |
| consecutive integers | integers that come in counting order |
| uniform motion | problems in which an object moves at a constant speed or rate |
| percent | ratio; out of 100 |
| percent of change | ratio; expresses amount of change over original amount |
| square root | a number that when multiplied by itself equals a given number |
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